diff --git a/internal/ingress/metric/collectors/controller.go b/internal/ingress/metric/collectors/controller.go
index e1d6789bb..5b5888dc6 100644
--- a/internal/ingress/metric/collectors/controller.go
+++ b/internal/ingress/metric/collectors/controller.go
@@ -305,6 +305,7 @@ func (cm *Controller) SetSSLExpireTime(servers []*ingress.Server) {
 		}
 		labels["host"] = s.Hostname
 		labels["secret_name"] = s.SSLCert.Name
+		labels["namespace"] = s.SSLCert.Namespace
 
 		cm.sslExpireTime.With(labels).Set(float64(s.SSLCert.ExpireTime.Unix()))
 	}
